o &zhd1@sddlZddlZddlZddlmZddlmZmZddlm Z m Z m Z m Z m Z ddgZddgZd d d Zd-d dZddZdaddZddZddZddZddZddZddZdd Zd!d"ZGd#d$d$eZd.d%d&ZGd'd(d(eZ d)d*Z!d/d+d,Z"dS)0N)UnsupportedOperation)UnknownExtension UnknownFormat)Image ImageFileStringIO string_types getattrsafePNGWEBPGIFz.jpgz.png)JPEGr TcKst|t|||SN) save_imager)imgformat autoconvertoptionsrG/var/www/html/kangema/venv/lib/python3.10/site-packages/pilkit/utils.py img_to_fobjsrcCs|dt|S)Nr)seekropen)targetrrr open_images  rcCstdkr tdadSdS)zLoads the standard PIL file format drivers. Returns True if ``preinit()`` was called (and there's a potential that more drivers were loaded) or False if there is no possibility that new drivers were loaded. rTF) _pil_initrpreinitrrrr _preinit_pils rcCs"ttdkrtdadSdS)zLoads all PIL file format drivers. Returns True if ``init()`` was called (and there's a potential that more drivers were loaded) or False if there is no possibility that new drivers were loaded. TF)rrrinitrrrr _init_pil+s r!cCstj|Sr)r EXTENSIONgetlower) extensionrrr_extension_to_format:sr&cCsR|r'|}|tvrt|}|tjvr|StjD] \}}||kr&|SqdSr)upperDEFAULT_EXTENSIONSrr"items)rextkvrrr_format_to_extension>s r-cCs:zd|pd}t|d}W|Styd}Y|Sw)Nza%sr) mimetypes guess_type IndexError)r*filenamemimetyperrrextension_to_mimetypeNs  r4cCs tt|Sr)r4format_to_extension)rrrrformat_to_mimetypeW r6cCs<t|}|s tr t|}|strt|}|st||S)zDReturns the format that corresponds to the provided extension. )r&rr!r)r%rrrrextension_to_format[s  r8cCsDd}|rt|}|strt|}|strt|}|s t||S)zCReturns the first extension that matches the provided format. N)r-rr!r)rr%rrrr5is  r5cCstj|d}zt|}Wn ty|}Y|Sw||kr'|}|Szt|}Wn ty9|}Y|Sw||krF|}|S|}|S)Nr)ospathsplitextr5rr$r8r)nameroriginal_extensionsuggested_extensionr%original_formatrrrsuggest_extensionys*     r@cs<eZdZfddZddZddZddZd d ZZS) FileWrappercstt|d|dS)N_wrapped)superrA __setattr__)selfwrapped __class__rr__init__szFileWrapper.__init__cCs z|jWStytwr)rBfilenorAttributeErrorrErrrrJs   zFileWrapper.filenocC t|j|Sr)getattrrB)rEr<rrr __getattr__r7zFileWrapper.__getattr__cCst|j||Sr)setattrrB)rEr<valuerrrrDszFileWrapper.__setattr__cCrMr)delattrrB)rEkeyrrr __delattr__r7zFileWrapper.__delattr__) __name__ __module__ __qualname__rIrJrOrDrT __classcell__rrrGrrAs  rAc s:pi|rt\}||zdWn ty$Ynwfdd}tfddtDr;}nt}z||WnDtytdvrWt dnddj ddd j dj d }|t j krst j } |t _ z ||W| t _ n| t _ wYnwzdWStyYSw) aR Wraps PIL's ``Image.save()`` method. There are two main benefits of using this function over PIL's: 1. It gracefully handles the infamous "Suspension not allowed here" errors. 2. It prepares the image for saving using ``prepare_image()``, which will do some common-sense processing given the target format. rcs@tj|fiWddS1swYdSr)quietsave)fp)rrrrrrZs"zsave_image..savec3s|]}t|VqdSr) isinstance).0t)outfilerr szsave_image..exifr) prepare_imageupdaterrKanyr rAIOErrormaxlensizerMAXBLOCK) rr_rrr save_kwargsrZwrapper new_maxblock old_maxblockr)rrrr_rrsJ           rc@s eZdZdZddZddZdS)rYz A context manager for suppressing the stderr activity of PIL's C libraries. Based on http://stackoverflow.com/a/978264/155370 cCsztj|_WntyYdStyYdSwz ttjtj |_ Wn t y1YdSwt |j|_ t|j |jdSr)sys __stderr__rJ stderr_fdrKrr9rdevnullO_RDWRnull_fdOSErrordupolddup2rLrrr __enter__s   zquiet.__enter__cOsLt|ddsdSt|ddsdSt|j|jt|jt|jdS)Nrvry)rNr9rzryrscloserv)rEargskwargsrrr__exit__s   zquiet.__exit__N)rUrVrW__doc__r{rrrrrrYs rYcCsFd}i}|}|jdkrG|tvrnt|tvrD||d}t|dd}ttdd}| dj d |d d }| d |d |d <nBd }n?|jd krp|tvrcz |j d |d <Wn,t ybYn$w|tvrm| d}nd }n| d}|dkrttdd}|j d |d}|rddl m}|| d}|dkrd |d<||fS)a Prepares the image for saving to the provided format by doing some common-sense conversions. This includes things like preserving transparency and quantizing. This function is used automatically by ``save_image()`` immediately before saving unless you specify ``autoconvert=False``. It is provided as a utility for those doing their own processing. :param img: The image to prepare for saving. :param format: The format that the image will be saved to. FRGBAcSs|dkrdSdS)Nrr)arrr9szprepare_image..zPalette.ADAPTIVEADAPTIVERGBPr)palettecolors transparencyTr )rr) MakeOpaqueroptimize)r'modeRGBA_TRANSPARENCY_FORMATSPALETTE_TRANSPARENCY_FORMATSloadsplitrevalr convertpasteinfoKeyError processorsrprocess)rr make_opaquermalphamaskrrrrrresF            recCsRddlm}|j}||p g|}|p|jp|pd}|pi}t|||fi|S)Nr)ProcessorPipeliner)rrrrr)rrrrrrr?rrr process_imagehs r)T)NT)NNTN)#r9r/rqior exceptionsrrlibrrrr r rrr(rrrrr!r&r-r4r6r8r5r@objectrArrYrerrrrrs8    G$X